Pith Number

pith:KYAKAG5J

pith:2026:KYAKAG5JNTSROCJO3QWVTL3BUW

not attested not anchored not stored refs pending

External Entropy Production and Human Evolution toward Multi-body Life

Kenji Toma, Yasuji Sawada

arxiv:2606.19066 v1 · 2026-06-17 · physics.bio-ph · nlin.AO · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KYAKAG5JNTSROCJO3QWVTL3BUW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-19T16:11:55.764499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5600a01ba96ce517092edc2d59af61a5a04f1bf13547c3ad7d3391947b241735

Aliases

arxiv: 2606.19066 · arxiv_version: 2606.19066v1 · doi: 10.48550/arxiv.2606.19066 · pith_short_12: KYAKAG5JNTSR · pith_short_16: KYAKAG5JNTSROCJO · pith_short_8: KYAKAG5J

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KYAKAG5JNTSROCJO3QWVTL3BUW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5600a01ba96ce517092edc2d59af61a5a04f1bf13547c3ad7d3391947b241735

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f80a87412f40518ecfbb42d052f59599289e9d2884a7cd01d75253c11669eb8",
    "cross_cats_sorted": [
      "nlin.AO",
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2026-06-17T13:40:08Z",
    "title_canon_sha256": "69c5395d4e400f3c74ee1000b64fcee262125043483206b920906d2e7a16cca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19066",
    "kind": "arxiv",
    "version": 1
  }
}